If you’ve started looking into prenups, you’ve probably noticed that the price range is enormous. One article tells you a prenup costs $600. Another says $10,000. A third mentions $20,000 for complex situations. So which number is right — and what actually determines where you end up on that spectrum?
The short answer: a prenup can cost anywhere from $599 for a straightforward online agreement to $20,000 or more for a complex, heavily negotiated, attorney-drafted contract. The average prenup for a couple using traditional attorneys ranges from $5,000 to $8,000. But for most couples with relatively uncomplicated finances, the real cost is much lower than that average suggests.
This article gives you the full picture — every cost driver, every available route, what you should realistically budget for based on your situation, and five concrete ways to reduce the price without sacrificing the legal quality of the agreement.
The Quick Answer: Prenup Cost by Route
Before diving into the details, here’s the complete cost picture by route in one place. We’ll break down each option in full below.
| Route | Typical Cost | Timeline | Best For |
| Online platform only | $599 – $1,500 | 1–2 hours | Simple / moderate finances |
| Online + attorney review | $1,300 – $2,500 | 1–2 weeks | Moderate complexity |
| Flat-fee attorney | $1,500 – $4,000 | 2–6 weeks | Moderate to complex |
| Hourly attorney (both) | $3,000 – $8,000 | 4–12 weeks | Any complexity |
| High-complexity (both) | $8,000 – $20,000+ | 8–16+ weeks | Simple/moderate finances |
The single biggest factor in your prenup cost isn’t your financial complexity or your location — it’s the route you choose. Couples who use an online platform spend a fraction of what couples using traditional hourly attorneys spend, even for comparable agreements.
Read: Online Prenup Service Comparison
What Is the Average Cost of a Prenup?
According to a 2024 survey of family law attorneys conducted by HelloPrenup, the average prenup costs $8,000 per couple when both partners use traditional attorneys. A Business Insider analysis put the figure somewhat lower, at around $5,000 per couple. The honest answer is that the average sits somewhere in the $5,000–$8,000 range for the traditional route — and that number assumes both partners each hire their own attorney, which is strongly recommended for enforceability.
But that average is misleading for most couples. It’s pulled upward by high-complexity cases — business owners, high-net-worth individuals, people with trusts or multiple properties — who require significantly more attorney time. If your financial situation is straightforward, you have no reason to assume you’ll land anywhere near $8,000.
| Key Stat According to a 2025 HelloPrenup survey of family law attorneys across the U.S., the average prenup costs $8,000 per couple via traditional attorneys. Online platforms bring that number down to $599–$1,997 for most couples. |
Here’s a more practical way to think about cost tiers based on complexity:
- Simple prenup (young couple, modest assets, no business interests): $599–$3,000
- Moderate complexity (some investments, one property, student debt): $2,500–$6,000
- High complexity (business ownership, significant assets, children from prior relationships): $6,000–$20,000+
The Four Main Cost Drivers
Understanding what drives the price up is the most useful thing you can know before you start. There are four primary variables.
1. Your financial complexity
This is the biggest single driver of cost. An attorney’s job is to understand, document, and legally protect your financial situation — and the more complex that situation is, the longer it takes.
- Simple: Two young professionals, similar salaries, some student debt, a few bank accounts. An attorney can draft this in a few hours.
- Moderate: One partner owns property, both have investment accounts, one has a small business interest. Requires more drafting, more back-and-forth, possibly a financial disclosure schedule.
- Complex: One partner owns an LLC or corporation, has equity in a startup, has a family trust, holds real estate in multiple states, or has children from a prior relationship. May require business valuations, tax specialists, property appraisers, and extensive negotiation.
2. Where do you live
Attorney rates vary dramatically by location — not just state by state, but city by city. A prenup that costs $3,000 in Nashville might cost $12,000 for the same complexity level in New York City. Here’s a realistic city-by-city breakdown:
| City | Approx. Attorney Rate | Estimated Prenup Cost |
| New York City, NY | $400–$1,000/hr | $6,000–$15,000+ |
| Los Angeles, CA | $350–$900/hr | $5,500–$12,000+ |
| Chicago, IL | $300–$700/hr | $4,500–$10,000+ |
| Houston, TX | $250–$600/hr | $3,500–$8,000+ |
| Miami, FL | $275–$650/hr | $4,000–$9,000+ |
| Phoenix, AZ | $200–$450/hr | $2,500–$6,000+ |
| Nashville, TN | $200–$400/hr | $2,500–$5,500+ |
| Omaha, NE | $175–$350/hr | $2,000–$4,500+ |
The good news: online prenup platforms charge the same flat rate regardless of where you live. If you’re in a high-cost-of-living metro area, the savings from using an online platform are proportionally even larger.
3. Hourly billing vs. flat fees
Most traditional attorneys bill by the hour for prenup work, typically between $250 and $1,000 per hour, depending on experience and location. Because prenups often require multiple drafts, negotiation rounds, and revisions, hourly billing can escalate quickly and unpredictably — especially if negotiations between the two partners get contentious.
Flat-fee attorneys eliminate this uncertainty. You agree on a fixed price upfront regardless of how many revisions are needed. Platforms like HelloPrenup, Neptune, and ContractsCounsel offer flat-fee structures that protect you from bill creep. According to ContractsCounsel data from recent projects, the average flat fee to draft a prenup is around $890, and the average flat fee to review one is around $540.
| Practical Tip If you’re going the attorney route, always ask upfront: “Do you offer a flat fee for prenups?” Some attorneys do, particularly those who specialize in prenuptial agreements. A flat-fee arrangement gives you cost certainty and removes the incentive for unnecessary back-and-forth. |
4. How aligned you and your partner are
One of the most underrated cost factors: how much you and your partner agree on before the attorneys get involved. If both of you have already talked through your priorities, know what you want to protect, and are broadly aligned on the terms, the attorney’s job is mostly drafting and reviewing. If you’re negotiating core terms through the lawyers, every phone call and email exchange gets added to the bill.
Couples who spend time discussing their prenup together — openly, before any attorneys are involved — consistently report lower legal costs and a smoother process. The conversation itself is free. The attorneys should be formalizing what you’ve already agreed on, not discovering your disagreements for the first time.
Read: How to Bring Up a Prenup Without Offending Your Partner
Online Prenup Platforms: What Do They Actually Cost?
The rise of online prenup platforms has fundamentally changed what a prenup costs for most couples. Here’s the breakdown of what the leading platforms charge in 2025:
HelloPrenup
- Base prenup (both partners): $599 flat fee per couple
- E-signature and notarization: $50 per couple
- Attorney Q&A session: $49 per partner per 20-minute session
- Full attorney document review + sign-off: $699 per partner
- All-in with attorney review for both partners: approximately $1,997
HelloPrenup was co-founded by family law attorneys and is one of the most established platforms in this space, commanding an estimated 20% of the total prenup market. Their platform guides couples through state-specific requirements and allows clauses to be added or removed based on individual needs.
Rocket Lawyer
- Prenup template with membership: approximately $39.99/month (cancel after)
- Attorney review add-on: varies by state, typically $150–$350
- Best for: couples who want a simple, low-cost starting point and may already use Rocket Lawyer for other legal documents
LawDepot
- Prenup template: approximately $33–$50 as a one-time download
- No built-in attorney review; would need separate counsel
- Best for: couples in straightforward situations who want the lowest possible price and will seek independent attorney review separately
| Important Note Fully DIY prenups — using a free template from the internet with no attorney involvement — are not recommended. While they technically cost nothing, a prenup that fails to meet your state’s specific legal requirements could be thrown out entirely, leaving you with no protection at all. The cost of a bad prenup is much higher than the cost of a good one. |
Do You Need Two Attorneys — and What Does That Add?
This is one of the most common questions couples have about prenup costs. The short answer: you don’t always legally need two attorneys, but having them significantly strengthens enforceability — and is strongly recommended in most situations.
Here’s why: one of the most common grounds for challenging a prenup in court is that one party claims they didn’t fully understand what they were signing, or that they signed under pressure. When both partners have independent legal counsel, that argument becomes extremely difficult to make. The attorney’s role is to ensure their client understands the agreement, not just to help draft it.
- Most states don’t legally require both partners to have attorneys, but courts are more likely to uphold a prenup when both do
- Some states require that both partners have independent counsel for the prenup to be enforceable — check your state’s specific requirements
- At a minimum, both partners should have an attorney review the final document before signing, even if only one attorney drafted it
On platforms like HelloPrenup, attorney review is available as an add-on for $699 per partner — meaning you can get both partners independently reviewed for $1,398 on top of the $599 platform fee. That’s a total of roughly $2,000 for a platform-drafted, attorney-reviewed, legally robust agreement. Compare that to the $5,000–$8,000 traditional route average.
Hidden Costs to Know About
Beyond attorney fees, there are a handful of smaller costs that can catch couples off guard. None are huge, but they’re worth knowing upfront.
- Notarization: Most states require a prenup to be notarized to be enforceable. Notary fees are typically $10–$50 in person, or $25 on HelloPrenup’s platform for online notarization.
- Financial disclosure preparation: Both partners must fully disclose their assets and debts. If you have complex holdings — real estate, business interests, investment accounts — a financial advisor or accountant may charge $200–$800 to help you prepare a thorough disclosure schedule.
- Business valuation: If one partner owns a business, an appraiser may be needed to establish its current value. Business valuations typically cost $1,500–$5,000, depending on complexity.
- Retainers: Traditional attorneys often require a retainer upfront — essentially a down payment — typically $1,500–$3,000. This is drawn down as they work, and you may or may not receive a refund if the total billed comes in under the retainer amount.
- Rush fees: If you need a prenup on a tight timeline — less than four to six weeks — some attorneys charge a premium for expedited work. Online platforms don’t have this issue since most can generate a document within hours.
5 Ways to Reduce Your Prenup Cost Without Cutting Corners
The goal isn’t to spend as little as possible — it’s to spend appropriately for your situation while ensuring the document is actually enforceable. Here are five approaches that genuinely reduce cost without compromising legal quality.
1. Use an online platform as your starting point
For couples with straightforward finances, an online platform like HelloPrenup produces a state-compliant, attorney-reviewed prenup for a fraction of traditional attorney costs. You can always add attorney review as a separate step if you want additional reassurance.
2. Align on the terms before involving attorneys
Have the conversation with your partner first. Agree on the broad strokes — what stays separate, what’s shared, how spousal support would work — before any attorney gets involved. Attorneys should be formalizing your agreement, not discovering your disagreements. Every hour of lawyer negotiation you avoid is $250–$1,000 saved.
3. Choose a flat-fee attorney over hourly billing
Ask specifically for a flat-fee prenup arrangement. Many family law attorneys offer this, especially those who specialize in prenuptial agreements. A flat fee protects you from unexpected cost escalation if negotiations take longer than anticipated.
4. Prepare your financial documentation in advance
Attorneys charge for their time — including the time they spend waiting for you to pull together your asset lists, bank statements, and property records. Come to your first meeting with everything organized: a complete list of assets, debts, account balances, property, and any business interests. Every hour you save the attorney is an hour you don’t pay for.
5. Consider a hybrid approach
Draft the prenup using an online platform, then pay an independent attorney to review it for each partner before signing. This gives you the affordability of an online platform with the legal protection of attorney oversight. On HelloPrenup, this hybrid approach costs around $1,997 total — versus $5,000–$8,000 for the fully traditional route.
| See What Different Services Actually Charge We’ve compared HelloPrenup, Rocket Lawyer, LawDepot, and more — side by side. Pricing, features, state availability, and attorney add-on options all in one place .→ Compare online prenup services → |
Is a Prenup Worth the Cost?
It’s a fair question. Here’s an honest answer.
The average contested divorce in the United States costs between $15,000 and $30,000 in attorney fees — and that’s without a prenup. With one, the financial terms are already agreed upon, which removes the single most contentious and expensive element of most divorces: asset and debt division.
Even a $5,000 prenup that prevents a $20,000 divorce dispute is an obvious financial win. But the more relevant comparison for most couples isn’t prenup vs. no prenup in a divorce scenario. It’s prenup vs. no prenup across the full length of a marriage — and across that timeline, the clarity, shared expectations, and financial transparency a prenup creates has value that’s difficult to put a number on.
For couples with significant assets, a business, children from a prior relationship, or substantial debt, the question of whether a prenup is worth it barely needs asking. For younger couples with simpler finances, an online prenup at $599–$1,500 is a genuinely low-cost way to put important financial decisions on record before combining your lives.
| Worth Remembering The average contested divorce costs $15,000–$30,000 in attorney fees. A prenup that prevents that outcome — even a partial one — pays for itself many times over. And if your marriage lasts a lifetime, which is the goal, you’ll simply have had one very useful financial conversation before the wedding. |
Frequently Asked Questions
What is the average cost of a prenup?
The average prenup costs $5,000–$8,000 per couple when both partners use traditional attorneys, based on a 2024 survey of U.S. family law attorneys. However, online platforms like HelloPrenup offer legally valid prenups for as little as $599, with full attorney review available for around $1,997 total.
Can I get a prenup for under $1,000?
Yes — online platforms like HelloPrenup charge $599 for the base prenup. You can add notarization for $50. If you want attorney review, that adds cost, but the base document is well under $1,000. Free DIY templates are not recommended, as they often fail to meet state-specific requirements and can be unenforceable.
Do I need to hire two separate attorneys?
Not always legally, but it’s strongly recommended. Courts are more likely to uphold a prenup when both partners have had independent legal counsel. Some states require it. At a minimum, both partners should have an attorney review the agreement before signing — even if only one attorney drafted it.
How much does a prenup lawyer charge per hour?
Prenup attorney hourly rates typically range from $250 to $1,000 per hour, depending on experience and location. Attorneys in major cities like New York and Los Angeles charge at the higher end; attorneys in smaller markets charge less. Flat-fee arrangements, when available, eliminate this uncertainty.
Does the cost of a prenup vary by state?
Yes, significantly. The variation is actually city-by-city more than state-by-state. Attorney rates in New York City or Los Angeles can be two to four times higher than rates in mid-sized cities in the same states. Online platforms charge the same flat rate regardless of location.
What happens if you get a cheap prenup that isn’t enforceable?
If a prenup is thrown out by a court — due to improper execution, lack of disclosure, or failure to meet state requirements — you have no agreement at all. The default divorce laws of your state apply instead. This is why cutting corners on a prenup is a false economy: an unenforceable prenup provides zero protection.
The Bottom Line
Prenups have become more accessible and affordable than at any point in history. The traditional $5,000–$8,000 average reflects the fully attorney-driven route — and for most couples with straightforward finances, that route is no longer the only sensible option.
An online platform like HelloPrenup can get you a state-compliant, legally sound prenup for $599. Add attorney review for both partners and you’re still well under $2,000 — a fraction of the traditional average, and a fraction of what a contested divorce would cost without one.
The right approach depends on your situation. Simple finances? An online platform with optional attorney review is likely all you need. Business ownership, significant assets, or complex family dynamics? Budget for full attorney involvement and treat it as the investment it is.
Either way, start the conversation early — with your partner first, then with whatever legal resource fits your budget. The earlier you begin, the less pressure everyone feels, and the lower your final cost is likely to be.
Read: Online Prenup Service Comparison
| Ready to Get Started? Compare the leading online prenup services side by side — including pricing, features, and state availability. Most couples with simple to moderate finances can be fully covered for under $2,000. → See the full service comparison → |